Al Worthington
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Allan Fulton Worthington, nicknamed "Red", was an American professional baseball pitcher. He played all or part of 14 seasons in Major League Baseball for the New York / San Francisco Giants, Boston R
Worthington in 1972 as a coach for the Minnesota Twins.
Worthington played for the New York / San Francisco Giants from 1953 to 1954 and 1956 to 1959.
Worthington with the Cincinnati Reds in 1963.
Sign stealing
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In baseball, sign stealing is the act of observing the signs being signaled by the opposing catcher to the pitcher or a coach, and the subsequent relaying of those signals to members of one's own team
Al Worthington
…between the Red Sox, the minor leagues, and the White Sox, retiring with about a month left in the season because the White Sox were engaged in ruses to steal opposing team's signs, and he could not play for the team with a clear conscience. He completed his degree at Howard College, then decided to return to baseball and spent…
Catcher James McCann (in white uniform) of the Detroit Tigers using his right hand (obscured) to give signs to his pitcher, in a 2015 game against the Minnesota Twins.
Catcher Malachi Kittridge of the Boston Beaneaters demonstrating how he gives signs, circa 1903.
Joe Nossek, who served as an MLB coach for 28 seasons, was considered a "sign-stealing guru".